NumberResearch Membership · Data 09/30/2026

Recent prefix assignments

372 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/30/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days
Rogers Communications Canada Inc. (Wireless) 46
8X8, INC. 43
NEW CINGULAR WIRELESS PCS, LLC - DC 27
NEW CINGULAR WIRELESS PCS, LLC - IL 23
ONVOY, LLC - CA 19
New assignments by month Oct 2026 Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025
Download CSV ↓
Quick find in this area code:
Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2018-10-15 667-722 0–9 XXXall 10 · 2 holders which blocks → CORE COMMUNICATIONS, INC.- MD 2593 GLENWOOD MD
2018-10-15 667-946 0–9 XXXall 10 · 2 holders which blocks → CORE COMMUNICATIONS, INC.- MD 2593 CHURCHVL MD
2018-10-15 725-212 0–9 XXXall 10 · 3 holders which blocks → METROPCS, INC. 5562 LAS VEGAS NV
2018-10-15 805-940 0–9 XXXall 10 · 3 holders which blocks → METROPCS NETWORKS, LLC 899D OXNARD CA
2018-10-15 901-459 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 SOMERVILLE TN
2018-10-15 909-704 0–9 XXXall 10 · 2 holders which blocks → METROPCS NETWORKS, LLC 899D ONTARIO CA
2018-10-15 929-496 0–9 XXXall 10 · 4 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWYRCYZN04 NY
2018-10-15 971-355 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SALEM OR
2018-10-12 251-651 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - AL 604E BAYMINETTE AL
2018-10-12 318-738 0–9 XXXall 10 · 4 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA 6505 MONROE LA
2018-10-12 332-331 0–9 XXXall 10 · 3 holders which blocks → EDGETEL, LLC 179J NWYRCYZN01 NY
2018-10-11 236-334 not yet reported which blocks → Bell Mobility 6574 Vancouver —
2018-10-11 318-720 0XXX1XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - LA 749E BENTON LA
2018-10-11 346-370 0–9 XXXwhole prefix which blocks → AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2018-10-11 365-292 not yet reported which blocks → Bell Mobility 6574 Oakville —
2018-10-11 463-214 0–9 XXXall 10 · 2 holders which blocks → ONVOY, LLC - IN 097D CICERO IN
2018-10-11 507-731 0XXX4XXX6XXX · 3 holders which blocks → CHARTER IP ENABLED SERVICES, LLC 792K ZUMBROTA MN
2018-10-11 561-599 0–9 XXXall 10 · 4 holders which blocks → INVOXIO INCORPORATED 158H DELRAY BCH FL
2018-10-11 561-770 0–9 XXXall 10 · 8 holders which blocks → INVOXIO INCORPORATED 158H BOYNTONBCH FL
2018-10-11 561-788 0–9 XXXall 10 · 4 holders which blocks → INVOXIO INCORPORATED 158H WPALMBEACH FL
2018-10-11 561-888 0–9 XXXall 10 · 6 holders which blocks → TERRA NOVA TELECOM, INC. - FL 382G WPALMBEACH FL
2018-10-11 581-398 not yet reported which blocks → Bell Mobility 6574 Quebec —
2018-10-11 585-499 0–9 XXXwhole prefix which blocks → NUSO, LLC 551G ROCHESTER NY
2018-10-11 682-275 0–9 XXXwhole prefix which blocks → MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EULESS TX
2018-10-11 682-288 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 WEATHERFD TX
2018-10-11 754-231 0–9 XXXall 10 · 5 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 HOLLYWOOD FL
2018-10-11 762-239 0–9 XXXall 10 · 5 holders which blocks → ONVOY, LLC - GA 067D CLARKESVL GA
2018-10-11 769-229 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BRANDON MS
2018-10-11 786-638 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT MIAMI E LICENSE, LLC 6889 KEYS FL
2018-10-11 804-956 0–9 XXXall 10 · 7 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - DC 4036 RICHMOND VA
2018-10-11 813-550 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - GA 6214 TAMPACEN FL
2018-10-11 813-599 0–9 XXXall 10 · 2 holders which blocks → INVOXIO INCORPORATED 158H TAMPACEN FL
2018-10-11 825-398 not yet reported which blocks → TELUS 8084 Banff —
2018-10-11 929-495 0–9 XXXwhole prefix which blocks → NUSO, LLC 551G NWYRCYZN11 NY
2018-10-11 929-510 0–9 XXXall 10 · 6 holders which blocks → NUSO, LLC 551G NWYRCYZN08 NY
2018-10-11 930-208 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - IN 097D HENRYVILLE IN
2018-10-11 949-516 0–9 XXXall 10 · 6 holders which blocks → PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LAGUNA BCH CA
2018-10-11 952-213 0–9 XXXall 10 · 3 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MN 5256 NORWOOD MN
2018-10-11 970-973 0–9 XXXall 10 · 7 holders which blocks → T-MOBILE USA, INC. 6529 GLENWD SPG CO
2018-10-10 304-996 0–9 XXXall 10 · 5 holders which blocks → PEERLESS NETWORK OF WEST VIRGINIA, LLC - WV 928H KINGWOOD WV
2018-10-10 309-519 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKISLAND IL
2018-10-10 352-770 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - FL 937C CRYSTALRIV FL
2018-10-10 352-780 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → ONVOY, LLC - FL 937C SLRSPGSHRS FL
2018-10-10 469-497 0–9 XXXall 10 · 4 holders which blocks → TWC IP ENABLED SERVICES, LLC 793K PLANO TX
2018-10-10 516-614 0–9 XXXall 10 · 3 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NASSAUZN01 NY
2018-10-10 567-861 0–9 XXXwhole prefix which blocks → ONVOY, LLC - OH 464C TOLEDO OH
2018-10-10 605-615 not yet reported which blocks → NATIVE AMERICAN TELECOM - PINE RIDGE LLC - SD 870F PINE RIDGE SD
2018-10-10 725-210 0–9 XXXall 10 · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC 6010 LAS VEGAS NV
2018-10-10 929-494 0–9 XXXall 10 · 4 holders which blocks → OMNIPOINT COMMUNICATIONS, INC. - NY 6622 NWYRCYZN08 NY
2018-10-10 936-283 0–9 XXXall 10 · 3 holders which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CONROE TX

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.